You won't be forbidden from wearing one. Continue if you want to. There will no longer be a legal obligation to wear the fuckers, but masks themselves won't actually become illegal.
Sounds thoroughly reasonable; however, I still remember when the rule had just come in a day or two previously and I had to go into the bank. I felt really, really odd having to cover a large part of my face, just like a bank robber would!
It would be interesting to see if, once masks are no longer required, somebody wearing a full face mask that covers everything except for their eyes - not talking balaclava, but a wider, higher, fuller version of what we have as standard now - will actually be allowed in, even if they wouldn't have previously been allowed in without it?!?!